Expand tests

Include Python 3.4 and specific Django supported versions.

Author: benmurden

.travis.yml

@@ -2,6 +2,7 @@ language: python
 
 python:
     - "2.7"
+    - "3.4"
     - "3.5"
 
 sudo: false
@@ -15,6 +16,10 @@ env:
 matrix:
     fast_finish: true
     include:
+      - python: "3.6"
+        env: DJANGO=1.11
+      - python: "3.3"
+        env: DJANGO=1.8
       - python: "2.7"
         env: TOXENV="flake8"
       - python: "2.7"